{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1baf0f927aa38f1cc4fb61001a78a5a32e384c3b50c882a705614ddbfb162761",
    "signature": "0x254094758243e9948096f22bd3703850175e918db9e73ed2f822d6f55e43f5bc7348a817fc7fec4edd41c8a3faa31b451f11577f9940f9050d49c45c6cdb36851c",
    "signer": "0xFCDfb74E763fE5b9120473Da4F79516edeb5d750",
    "userId": "736573111"
  }
}